What gwelch is talking about applies to copy only:
Well its a pure gui problemf. except that the gui guves you 3 options whan there in all actuality is 4. NOw then the 4th option can be set trough mel no problem there but the GUI itself cant apparently set the 4th default option at all. BUT you actualy can do that, thing is the default setting is exactly the way you want it even yough the gui cant puta finger on it. So no GUI feedback for this.
so choosing graph editor -> edit -> copy
| copy Keys Options -> Reset Settings
this is bevcause the most sane option is default but its also not settable trough the gui
nasty aint it
Thing is dont go around suggesting people to delete prefs if they dont need to delete the prefs especialy on a mel forum is gong to drive people insane because the last thing ANY seasoned maya user ever wants to do is delete their prefs. its just something you do not ever do. IT takes me about 6 hours to set my preferences back the way they were if i truly deleted all of my prefs. And thats true to most HC users that use maya more then once a forthinght.
just resetting the settings of particular tool is usualy enough! its like deleting prefs but only for thet one item
Infact the only thing id ever refuse to do wjhatever happens is delete my prefs becasuse the prefs are all that i need of maya, if i delte them ist lke id go back 3 years in maya usage worktime and knowlege.
Now then reseting is easier than deleting the prefs dont you think! Especialy wna you dont nee dto go back and forthe band cop